Helix-coiling machine.



F. B. SHUSTER, DEGD.

L. r. SHUSTBR, ADMINISTRATBIX.

HELIX-OOILING MACHINE.

APPLICATION FILED OUT. 28, 1910.-

Patented Apr. 9, 1912.

2 BHBETS-SHEET 1.

INVENTOR F. B. SHUSTER, DEC'D.

L. r. snus'rnn, ADMINISTBATEIX.

HELIX GOILING MACHINE.

APPLICATION FILED 001. 2a, 1910.

Patented Apr. 9, 1912.

2 SHEETS-SHEET 2.

- IIVI/ENTOR ,i ATTORNEY WITNESSES.

J d. J

UNITED 'srn' ns PATENT OFFICE.

FRANKLIN B. SHUSTER, OF NEW HAVEN, CONNECTIGITT; LUELLA F. SHIl'STER ADMINISTRATRIX 0F SAID FRANKLIN B. SHUSTER, DECEASED.

HELIX-COILING MACHINE.

Specification'of Letters ratent.

' Patented APR-9,1912.

Application filed October 28, 1910. Serial No. 589,563.

To all whom it may concern:

Be it known that I, FRANKLIN B. SHUS- TER, citizen of the United States, residing at declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to machines for coiling wire, and 'it is particularly adapted for forming coils of larger diameter than the coil supporting rod or arbor, and it consists in rotating said central support at the same rate of speed as the feed rolls, thus relieving the rolls of the extra power it would otherwise require to rotate a long and large coil of wire mounted on a stationary support.

Referring to the drawings wherein like figures and letters of reference indicate likeparts: Figure 1 represents a side elevation of the niachineand broken view of one of its legs, also a view of a partially formed coil and cross sectional view of the wire or rod as itis being fed through the rolls: Fig. 2 is a front elevation of the machine ,with the legs and tubular coil supporting arbor removed; Fig. 3 is an enlarged detail broken view of'the coil arbor and its supporting coupling removably secured to one of the feed roll shafts; Fig. 4 is an enlarged detail view of the .arbor coupling; Fig. 5 is an enlarged end elevation of the coil supporting arbor and its roller bearing, and broken view of the adjustable stem supporting the roller bearing; Fig. 6 is an enlarged detail rear elevation of the breaking down or pitch roll; Fig. 7 is an enlarged plan view of the pitch roll, sectional view of its supporting slide on line a of Fig. 2, also a view of the slide operating screw,-and means for securing the pitch roll in any of its adjusted positions; Fig. 8 is a diagram of the gearing located at the rear end of the machine for operating the feed rolls; and Fig. 9 is an enlarged sectional modified view of one of the feed rolls designed to support the inner end of the coil supporting arbor.

The machine frame 1, mounted on the bed 2, carries the feed rolls 3, 4, 5 and 6, mounted on the shafts 7, 8, 9 and 10, shown at Fig. 8, driven by the gears 11, 12, 13 and 14. The driving pulley 15 is mounted on the shaft 16 which also carries the driving plmon 17 meshing with the large gear 18 mounted on the feed roll shaft 9. Power is thus transmitted from the pinion 17 to the large gear 18-, and from the ear 13 on the feed roll shaft 9 to the shaft and through the intermediate gear 19, on stud 20, to the spindles or shafts of the other two feed rolls. The upper feed roll shafts are journaled in boxes 21 and 22 having a vertical adjustment in the machine frame by the common method of the screws 23 and horizontally arranged gears 24 and 25. The shafts of the lower feed rolls are simply .journa'led in the machine frame.

26 is the breaking down or pitch roll ro-v tatably mounted on the pintle 27 Fig. 7, and this pintle is longitudinally adjustable in the hole 28 of the slide 29, which slide has .a longitudinal movement in the projection 1 of the machine frame, Figs. 1 and 2, through the medium of the screw 30 and its hand Wheel 31. The pintle 27, Figs. 6 and 7, is provided throughout its length with the angular groove 32 adapted to receive the pointed end of the rod 33 backed up by the screw 34. The pitch roll pintle is adjusted to and from the slide in order to place the pitch roll in proper relation to the feed rolls to form the coil 35 and give said coil the required pitch as it leaves the feed rolls, and is secured in any such adjusted position by means of the before mentioned rod 33 and'screw 34.

The coupling 36 has the.bore.37"whose inner end is threaded to receive the threaded end 9 of the feed roll shaft 9 shown at Fig.

3. The coupling 36 has the hub 36" adapted to receive the inner end of the tubular coilsupporting arbor 38, which inner end is provided with the bayonet slot 39 adapted to receive the pin 40 projecting from the hub of the coupling 36. The outer end of the arbor 38 rests on the rollers 41 mounted in the head 42, which rollers provide an antifrictional bearing for the arbor 38 and thus prevent torsional strain of said arbor. The

stem 43 of the roller head is made vertisupporting arbor, and to do this, especially when large wire is used, it is absolutely necessary to rotate the coil supporting arbor at the same rate of speed as the feed'rolls in order to secure a unlform coil. With large wire, and a large coil of thirty inches or more in diameter, and a stationary arbor, the strain of forcing the wire through the pitch roll and rotatin the coil over a long stationary arbor wou (1 cause the coil to buckle and thus distort it. But with a rotating arbor traveling at the same rate of speed as the feed rolls, the friction of the coils on the arbor is entirely eliminated, thus obviating anytendency of the coils to buckle. When a sufiicient length of coil has been formed, the arbor is detached from the coupling 36 and the coil removed therefrom. The pin 40 serves as a driver for the arbor and the bayonet slot in the arbor furnishes an easy and convenient method of uickly attaching and detaching the arbor rom the coupling. I

In the modified construction shown at Fig. 9, the inner end of the coil supporting aiboris mounted on the hub 6 of the feed roll 6, and the coupling is, in this case, dispensed with.

\Vhile I show the coil .su porting arbor driven directly from one 0% the feed roll shafts as the most direct and convenient method of driving it at the same rate of speed as the feed rolls, I hold myself at liberty to rotate the arbor in any well known suitable manner that will produce the dewound of larger diameter than the arbor,

the coils will readily take to the arbor on leaving the feed roll and rotate with said arbor and thus reduce the strain on the feed rolls.

In testimony whereof I afiix my signature in presence of two witnesses.

FRANKLIN B. SHUSTER. Witnesses:

E. L. SIMPsoN, WM. SUKLOFF. 

